Lifehacker has become one of my favorite sites (thanks, Vern!). This time they talk about 10 Minute Mail, a site that will create an email address for you that’s only good for 10 minutes. Need to get onto a site that requires an email address but you just don’t wanna give them one of yours? — use 10 Minute Mail! The domains that the email address originates from changes every month or so which means there’s very little danger of a sysadmin banning the domain. And if you need the address to survive for 20 minutes, you can click a link on the site that extends the life of the email address.